I need to use function tfgld0022 in a condition script.

I have it declared just like a normal script

#include "itfgld0022"

But I get an error when creating the script "Function within a function not allowed"

(ignore the extra "}" at the end, I was trying something I saw on this forum, it didn't work....

I think you need to supply the full path of the include:

This is an exchange condition that I used where I needed a dll call:

all on one line

#pragma used dll ${BSE}/application/tcB40C_b4_C2b2/otcmcs/omcsdllc001